The SP3 Knapsack Sprayer

The SP3 Knapsack Sprayer
The SP3 Knapsack Sprayer
We would like to congratulate you on the purchase of your new SP3. The sprayer that allows you the easiest, most comfortable way of carrying out your farm and garden projects with the revolutionary diaphragm pump (patented), that all but
eliminates the problems inherent in most sprayers.
As a new owner of the skillfully engineered SP3, we strongly recommend you carefully read and follow all the information
on this sheet before use, and then save for future reference.
Please read the attached trouble shooting guide.
Attach spray wand to spray gun and tighten firmly.
Take pump handle Kit 7 (solid) and insert into the tube on the pump lever Kit 5 ("T" shape lever on sprayer), you will
notice holes drilled through both sides of both the pump handle and the pump lever. Align these holes, take the "R"
pin provided and place through the holes. This affixes the handle in place and is ready for use.
For storage reverse process and then place "R" pin through the pump lever Kit 5 to keep from losing "R" pin.
Instructions for installing shoulder strap plastic buckle:
First put the sprayer on a hard flat surface, take the white plastic buckle and while holding the sprayer up slightly, place
buckle under the tubular metal frame. Slowly push down forcing the frame into the buckle. Repeat the same procedure
for other side.
Remove cap.
Mix solution in a separate receptacle, following manufacturers directions on the container.
Pour pre-mixed solutions into sprayer and cap.
Place sprayer on back and pressurize tank by pumping approximately 10 to 15 times. For best results, the sprayer
should be pumped every 5 seconds on a continuous basis. This will maintain your spraying pressure. If you
do not pump, you will not have pressure to spray.
Always oil the seal on cap of unit as well as the check valve, this will extend life of seal and is important for obtaining
proper seal with no leaks.
A unit that has been used with herbicides should never be used to spray insecticides, unless the sprayer has been
properly cleaned and all other chemicals neutralized. Failure to do this could cause you to kill plants that have been
sprayed. Consult with the manufacturer of the chemicals in use to obtain proper instructions.
Remove cap and pour out remaining solution, then rinse all parts thoroughly with clean water.
Leaving approximately 1/2 gallon of fresh water in tank, pressurize and flush pumping system by depressing trigger
at least 2 minutes, then drain all remaining water.
Always store tank clean and empty in a dry, shaded location.
Please read and follow all instructions before using sprayer.
Failure to follow
on use and care of
unit will void any
expressed or implied warranty.
Do not use chlorine or clorox. It
will permanently
damage pump
Before using, filling or cleaning any sprayer, read all parts of the operating instructions.
Make sure to set up the sprayer exactly as explained in the printed operating instructions, reminder tags and/or stickers.
Wear protective clothing, respirator, gloves, eye protection, etc. whenever using, filling, or cleaning sprayer.
Periodically re-grease lid gasket as well as lid vent and pump cylinder, where applicable.
To ensure good performance, keep lid vent free of obstruction. Before and after each use, make sure all connections are well
tightened. Service and replace worn parts as required.
Read and follow all instructions of the chemical suppliers.
As a rule, mix your chemicals in a separate container from which to fill the sprayer. Do not mix formulas inside the sprayer.
Where an exception is made (e.g. with liquid fertilizers), fill sprayer with water BEFORE adding the active ingredient.
Always sift formula through the screen. If there is no built-in strainer, use a screened funnel.
Never fill the sprayer with hot liquids. Max. 30ºC, or 85ºF.
This sprayer is made to handle agrichemicals in their usual water or oil solutions. Do not use flammable, corrosive or caustic
Never use gasoline or other flammable materials.
Before cleaning or servicing the sprayer, allow all pressure to escape. Do not store or transport sprayer under pressure.
After each use, wash the sprayer—including hose, lance and shut-off valve—with plenty of fresh water. Unless spraying is
to be continued within hours, drain chemical formula and thoroughly rinse the tank and all liquid ducts.
Never store chemicals in your sprayer for any length of time.
Use the sprayer only for the kind of jobs for which it was designed. When in doubt, ask your dealer.
Do not leave the sprayer in reach of children or persons not qualified to handle it in proper fashion.
When not in use—and especially during prolonged storage—keep your sprayer in a protected place away from direct
solar heat.
Make sure the spray hose loops freely without kinking or squeezing.
Always use SP Systems original replacement parts.
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